Add user authentication and statistics endpoints

- Introduced user login functionality with JWT token generation.
- Added user management routes for fetching all users and user login.
- Implemented new statistics endpoints for total counts of appointments, doctors, lab tests, and medicines.
- Updated existing controllers and routes to integrate new features.
- Enhanced the admin dashboard to display user and hospital statistics.
- Refactored lab component to support adding, editing, and deleting lab tests.

Author: hammadhttps

.gitignore

@@ -0,0 +1,11 @@
+/node_modules
+/back_end/node_modules
+/back_end/.env
+/front_end/.env
+/front_end/node_modules
+/front_end/build
+/front_end/node_modules
+/front_end/.env
+/front_end/build
+/front_end/node_modules
+/front_end/.env

back_end/.gitignore

@@ -1,2 +1,3 @@
 node_modules/
+.env
 

back_end/controller/appointmentController.js

@@ -164,10 +164,32 @@ const submitFeedback = async (req, res) => {
     }
 };
 
+const getTotalAppointmentsCount = async (req, res) => {
+  try {
+    const result = await sql.query`SELECT COUNT(*) AS total FROM Appointments`;
+    res.status(200).json({ total: result.recordset[0].total });
+  } catch (err) {
+    console.error('Error fetching total appointment count:', err);
+    res.status(500).json({ error: 'Failed to fetch appointment count' });
+  }
+};
+
+const getTotalBillingCount = async (req, res) => {
+  try {
+    const result = await sql.query`SELECT COUNT(*) AS total FROM Billing`;
+    res.status(200).json({ total: result.recordset[0].total });
+  } catch (err) {
+    console.error('Error fetching total billing count:', err);
+    res.status(500).json({ error: 'Failed to fetch billing count' });
+  }
+};
+
 module.exports = {
     createAppointment,
     getAppointmentsByDoctor,
     getAppointmentsByPatient,
     updateAppointmentStatus,
-    submitFeedback
+    submitFeedback,
+    getTotalAppointmentsCount,
+    getTotalBillingCount
 };

back_end/controller/doctorController.js

@@ -99,8 +99,19 @@ const getDoctorAvailability = async (req, res) => {
     }
 };
 
+const getTotalDoctorsCount = async (req, res) => {
+  try {
+    const result = await sql.query`SELECT COUNT(*) AS total FROM Doctors`;
+    res.status(200).json({ total: result.recordset[0].total });
+  } catch (err) {
+    console.error('Error fetching total doctor count:', err);
+    res.status(500).json({ error: 'Failed to fetch doctor count' });
+  }
+};
+
 module.exports = {
     getAllDoctors,
     getDoctorById,
-    getDoctorAvailability
+    getDoctorAvailability,
+    getTotalDoctorsCount,
 };

back_end/controller/labController.js

@@ -177,12 +177,23 @@ const getTestsByPatient = async (req, res) => {
     }
 };
 
+const getTotalLabTestsCount = async (req, res) => {
+  try {
+    const result = await sql.query`SELECT COUNT(*) AS total FROM LabTests`;
+    res.status(200).json({ total: result.recordset[0].total });
+  } catch (err) {
+    console.error('Error fetching total lab tests count:', err);
+    res.status(500).json({ error: 'Failed to fetch lab tests count' });
+  }
+};
+
 module.exports = {
     getAllTests,
     getTestById,
     createTest,
     updateTest,
     deleteTest,
     getTestsByStatus,
-    getTestsByPatient
+    getTestsByPatient,
+    getTotalLabTestsCount
 };

back_end/controller/patientController.js

@@ -1,5 +1,6 @@
 const sql = require('mssql');
 
+
 // Get total number of patients
 exports.getTotalPatientsCount = async (req, res) => {
     try {

back_end/controller/pharmacyController.js

@@ -82,9 +82,20 @@ const deleteMedicine = async (req, res) => {
     }
 };
 
+const getTotalMedicinesCount = async (req, res) => {
+  try {
+    const result = await sql.query`SELECT COUNT(*) AS total FROM Pharmacy`;
+    res.status(200).json({ total: result.recordset[0].total });
+  } catch (err) {
+    console.error('Error fetching total medicine count:', err);
+    res.status(500).json({ error: 'Failed to fetch medicine count' });
+  }
+};
+
 module.exports = {
     getAllMedicines,
     addMedicine,
     updateMedicine,
-    deleteMedicine
+    deleteMedicine,
+    getTotalMedicinesCount,
 };

back_end/controller/userController.js

@@ -0,0 +1,51 @@
+const sql = require('mssql');
+const bcrypt = require('bcryptjs');
+const jwt = require('jsonwebtoken');
+
+const loginUser = async (req, res) => {
+  const { username, password } = req.body;
+  if (!username || !password) {
+    return res.status(400).json({ message: 'Username and password are required.' });
+  }
+  try {
+    const request = new sql.Request();
+    request.input('username', sql.VarChar(50), username);
+    const result = await request.query(`SELECT * FROM Users WHERE username = @username`);
+    if (result.recordset.length === 0) {
+      return res.status(401).json({ message: 'Invalid username or password.' });
+    }
+    const user = result.recordset[0];
+    let passwordMatch = false;
+    try {
+      passwordMatch = await bcrypt.compare(password, user.password_hash);
+    } catch (e) {
+      passwordMatch = false;
+    }
+    // TEMPORARY: Allow plain text password match for testing
+    if (!passwordMatch && password === user.password_hash) {
+      passwordMatch = true;
+    }
+    if (!passwordMatch) {
+      return res.status(401).json({ message: 'Invalid username or password.' });
+    }
+    // Generate JWT
+    const token = jwt.sign({ user_id: user.user_id, role: user.role, full_name: user.full_name }, process.env.JWT_SECRET || 'secret', { expiresIn: '1d' });
+    res.json({ token, user: { user_id: user.user_id, username: user.username, role: user.role, full_name: user.full_name, email: user.email, phone: user.phone } });
+  } catch (err) {
+    console.error('Login error:', err);
+    res.status(500).json({ message: 'Server error', error: err.message });
+  }
+};
+
+const getAllUsers = async (req, res) => {
+  try {
+    const request = new sql.Request();
+    const result = await request.query('SELECT user_id, username, role, full_name, email, phone FROM Users');
+    res.json(result.recordset);
+  } catch (err) {
+    console.error('Error fetching users:', err);
+    res.status(500).json({ message: 'Error fetching users', error: err.message });
+  }
+};
+
+module.exports = { loginUser, getAllUsers }; 

back_end/routes/appointmentRoutes.js

@@ -5,7 +5,9 @@ const {
   getAppointmentsByDoctor,
   getAppointmentsByPatient,
   updateAppointmentStatus,
-  submitFeedback
+  submitFeedback,
+  getTotalAppointmentsCount,
+  getTotalBillingCount
 } = require('../controller/appointmentController');
 
 // Add these routes
@@ -14,5 +16,7 @@ router.post('/feedback', submitFeedback); // POST /api/appointments/feedback
 router.get('/doctor/:doctorId', getAppointmentsByDoctor);
 router.get('/patient/:patientId', getAppointmentsByPatient);
 router.put('/:id/status', updateAppointmentStatus);
+router.get('/stats/total', getTotalAppointmentsCount);
+router.get('/stats/billing', getTotalBillingCount);
 
 module.exports = router;

back_end/routes/doctorRoutes.js

@@ -1,14 +1,10 @@
 const express = require('express');
-const {
-    getAllDoctors,
-    getDoctorById,
-    getDoctorAvailability
-} = require('../controller/doctorController');
-
+const { getAllDoctors, getDoctorById, getDoctorAvailability, getTotalDoctorsCount } = require('../controller/doctorController');
 const router = express.Router();
 
 router.get('/', getAllDoctors);                   // GET all doctors
 router.get('/:id', getDoctorById);                // GET doctor by ID
 router.get('/:id/availability', getDoctorAvailability); // GET doctor availability
+router.get('/stats/total', getTotalDoctorsCount);
 
 module.exports = router;